Home / 86,289.96-119,034.48-59,385.76

Finding the Fourth Proportional to 86,289.96, 119,034.48 and 59,385.76

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Solution

The fourth proportional to 86,289.96, 119,034.48 and 59,385.76 is: 81,920.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,289.96 : 119,034.48 = 59,385.76 : x
  2. Step 2: Convert to fraction form
    86,289.96/119,034.48 = 59,385.76/x
  3. Step 3: Cross multiply
    86,289.96x = 119,034.48 × 59,385.76
  4. Step 4: Simplify right side
    86,289.96x = 7,068,953,530.60
  5. Step 5: Solve for x
    x = 7,068,953,530.60/86,289.96
  6. Step 6: Final answer
    x = 81,920.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.